.add-goods-form{
    width: 50%;
    margin: 20px auto 0;
    padding: 20px;
    border: 1px solid #ccc;
}

.col-12{
    margin: 5px 0;
}

.describe{
    height: 100px;
    resize: none; /* 禁止拖动 */
}

.btndiv{
    text-align: center;
    margin-top: 20px;
}

.btndiv button{
    width: 50%;
}

#preview {
    width: 255px;
    height: 255px;
    border: 1px solid #ccc;
    margin: 10px auto;
    display: none;
}

#preview img {
    width: 100%;
}